Buick Century 1989, Direct Fit Pre-OBDII Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace the...

Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power

Buick Century 1989, Direct Fit Undercar Catalytic Converter by Eastern Catalytic®. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed specifically for your vehicle, this...

Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor

Buick Century 1989, Exhaust Flange Gasket by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick and easy. Choose Bosal, and you'll get...

Buick Century 1989, Direct Fit Catalytic Converter by Walker®. This catalytic converter is constructed specially for your vehicle to directly replace the original equipment part and comes ready to install. The part is designed to...

Buick Century 1989, Universal Catalytic Converter by Walker®. This part features the correct load of precious metals to ensure the proper limitation of tailpipe emissions. It is designed to meet the EPA policy and emission...

Buick Century 1989, Universal Fit Catalytic Converter by Eastern Catalytic®. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you definitely need a new one, and this product is the way...

Universal fitConverts harmful engine emissions to less dangerous gases and water vapor

Buick Century 1989, Quiet-Flow Muffler by Walker®. Together with delivering OE-style sound, the Quiet-Flow Muffler features 100% structural stainless steel construction that resists rust three times longer than aluminized mufflers...

Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire

Buick Century 1989, SoundFX Direct Fit Muffler by Walker®. This muffler is the right choice if you opt for quality acoustics and performance. Walker offers 100% aluminized steel SoundFX Mufflers with direct fit and universal fit...

Buick Century 1989, SoundFX Universal Muffler by Walker®. This muffler is the right choice if you opt for quality acoustics and performance. Walker offers 100% aluminized steel SoundFX Mufflers with direct fit and universal fit...

Designed to deliver ultimate performance and pleasing sound qualityUniversal fit – may require a few modifications to install

Buick Century 1989, Tru-Fit Universal Muffler by Walker®. The Tru-Fit Universal Muffler is designed to provide installers and DIY users with optimum performance and quality acoustics at an affordable price. This 100% aluminized...

Buick Century 1989, Intermediate Pipe by Walker®. If you want exhaust piping that delivers precise OE-style fit, appearance, and reliability, this part is your number one choice. Every pipe is vehicle-specific and is manufactured...

Designed to directly replace the factory partMade with precision benders and fixture checked

Buick Century 1989, Exhaust Manifold Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the...

Buick Century 1989, Exhaust Manifold Gasket by Victor Reinz®, Use 1 per Car. OEM Standard. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before...

Buick Century 1989, Bolt Kit by Walker®. 1 Inlet, 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you...

Buick Century 1989, Spring by Walker®. 1 Inlet, 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you...

Buick Century 2.5L 1989, Exhaust Manifold Bolt and Spring by Dorman®. This is an aftermarket part that replaces factory OE # 15547999, 25501711. Material: Metal. Standard Replacement, No Dog Point Fastener. Includes: With 1...

Includes heat-shield for protection of hoses, wiring, and other engine componentsCast iron or stainless tubular construction protects against warping and/or cracking

Buick Century 1989, Clamp by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker...

Buick Century 1989, Gasket by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker...

Buick Century Coupe / Sedan V6 1989, Hanger by Walker®. 1 Inlet, 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust...

Buick Century 1989, Insulator by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker...

Buick Century 1989, Exhaust Pipe Flange Gasket by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the...

Buick Century 1989, Exhaust Seal Ring by Victor Reinz®, Use 1 per Car. OEM Standard. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you...

Universal 10 Series Delta Force Single Chamber Race Muffler by Flowmaster®, AGGRESSIVE SOUND. The 10 Series Race mufflers are a compact lightweight single chamber design that will give a noticeable sound reduction compared to open...

Universal 30 Series Delta Force™ 3-Chamber Race Muffler by Flowmaster®, AGGRESSIVE SOUND. These are the most powerful and the quietest professional race mufflers available. 5.00” & 6.00” thick case sizes for maximum power and...

Race Proven TechnologyDelta Force Technology for Maximum Torque and Power

Universal 40 Series Delta Force™ 2-Chamber Race Muffler by Flowmaster®, AGGRESSIVE SOUND. The 40-Series mufflers offer a combination of maximum power and substantial dB-reduction compared to open headers. They are recommended for...

Race Proven TechnologyDelta Force Technology for Maximum Torque and Power

Universal Outlaw™ Race Muffler by Flowmaster®, AGGRESSIVE SOUND. These mufflers are very small and lightweight. Attached directly to the collector they generally produce more power than open headers, while taking “the edge”...

Universal Scavenger Series Outlaw II Race Collector Muffler by Flowmaster®. These Delta Force Mufflers are designed to attach directly to the exhaust header primary tubes, replacing the collector in sprint and drag racing...

Universal Scavenger Series Race Collector Muffler by Flowmaster®. These Delta Force Mufflers are designed to attach directly to the exhaust header primary tubes, replacing the collector in sprint and drag racing applications. They...

Universal 40 Series Original Muffler by Flowmaster®, AGGRESSIVE SOUND, 4" Thick x 9.75" Wide x 13" Case Length x 19" Overall Length. This is the muffler that launched the success of Flowmaster. It is an aggressive sounding...

The Original High Performance Flowmaster MufflerrAggressive Sound for the Enthusiasts Who Love Their Exhaust to be LOUD

Universal Super HP-2™ Stainless Steel Performance Muffler by Flowmaster®, 4" Thick x 5" Wide. The new Super HP-2 Series muffler offers the same great performance benefits and moderate tone that you would expect from our laminar...

Universal Glass Pack Red Coated Aluminized Steel Muffler by MagnaFlow®. The Glass Pack Mufflers have the same high performance optimizing, straight-through design as the more expensive MagnaFlow mufflers. They are made in...

Universal S-Type™ Stainless Steel Round Muffler by Borla®. Get increased performance and the aggressive sound of power with this Universal S-Type Muffler. This is the same style austenitic stainless steel straight through muffler...

Universal XR-1™ Multicore Stainless Steel Race Muffler by Borla®. The Borla XR-1 Multi-Core Muffler was developed on the race track to quiet the most severe engine noise without restricting power. They work so well that they're...

The most possible exhaust flow in a muffler for maximum performanceQuiets the most severe engine noise, leaving a pronounced sound of power

Universal CFT Superflow™ Oval Muffler by Gibson®. Get optimum usable power and a deep powerful sound with a Gibson CFT Superflow Muffler. The CFT Superflow has one of the lowest restriction ratings of any muffler on the market,...

Universal SFT Superflow™ Round Muffler by Gibson®. Get increased exhaust flow for more power and great sound with a Gibson SFT Superflow Muffler. The SFT Superflow has one of the lowest restriction ratings of any muffler on the...

Universal Race Muffler by Gibson®. Inspite of the large host of engineers and technicians, Gibson Performance has not lost its commitment to building cost-effective exhaust systems that deliver more performance for less spendings....

Universal Installer Series™ Aluminized Steel Round Muffler by MBRP®. Short on space under your car for a muffler? A round muffler might just be the ticket to tuck in around a drive shaft or up near the cats. Choose whether you...

Universal XP Series™ T409 Stainless Steel Round Muffler by MBRP®. Short on space under your car for a muffler? A round muffler might just be the ticket to tuck in around a drive shaft or up near the cats. Choose whether you want...

Universal Black Series™ Black Aluminized Steel Round Muffler by MBRP®. Black is the new chrome, so here’s a chance to build an all-black exhaust system perfect for your “murdered-out” custom car. Constructed of Aluminized...

Regardless of whether you're shopping for a simple replacement muffler that delivers original equipment (OE) sound and performance or an upgraded muffler which provides a deeper growl with increased power through freer exhaust flow, you'll see choices between "direct fit" mufflers and "universal" mufflers. In this article, we'll help you understand the differences...

It has been a battle of the ages to make exhaust sound like it should. Having less bends or turns will not only improve the sound but also performance. A custom exhaust is always an option for the race inspired and spirited weekend warriors. Our manufactures offer everything needed to build a custom exhaust to your preference.

Headers are installed because the stock exhaust manifolds usually flow poorly. An exhaust header has individual tubes for each exhaust port, allowing each exhaust pulse to flow unobstructed from the cylinder head. The tubes on headers are usually larger in diameter than the runners on an exhaust manifold and the tubes are mandrel bent for gradual radius bends.

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